# uncompyle6 version 3.2.3
# Python bytecode 3.6 (3379)
# Decompiled from: Python 3.6.8 |Anaconda custom (64-bit)| (default, Feb 21 2019, 18:30:04) [MSC v.1916 64 bit (AMD64)]
# Embedded file name: fnmatch.py
"""Filename matching with shell patterns.

fnmatch(FILENAME, PATTERN) matches according to the local convention.
fnmatchcase(FILENAME, PATTERN) always takes case in account.

The functions operate by translating the pattern into a regular
expression.  They cache the compiled regular expressions for speed.

The function translate(PATTERN) returns a regular expression
corresponding to PATTERN.  (It does not compile it.)
"""
import os, posixpath, re, functools

__all__ = ["filter", "fnmatch", "fnmatchcase", "translate"]


def fnmatch(name, pat):
    """Test whether FILENAME matches PATTERN.
    
    Patterns are Unix shell style:
    
    *       matches everything
    ?       matches any single character
    [seq]   matches any character in seq
    [!seq]  matches any char not in seq
    
    An initial period in FILENAME is not special.
    Both FILENAME and PATTERN are first case-normalized
    if the operating system requires it.
    If you don't want this, use fnmatchcase(FILENAME, PATTERN).
    """
    name = os.path.normcase(name)
    pat = os.path.normcase(pat)
    return fnmatchcase(name, pat)


@functools.lru_cache(maxsize=256, typed=True)
def _compile_pattern(pat):
    if isinstance(pat, bytes):
        pat_str = str(pat, "ISO-8859-1")
        res_str = translate(pat_str)
        res = bytes(res_str, "ISO-8859-1")
    else:
        res = translate(pat)
    return re.compile(res).match


def filter(names, pat):
    """Return the subset of the list NAMES that match PAT."""
    result = []
    pat = os.path.normcase(pat)
    match = _compile_pattern(pat)
    if os.path is posixpath:
        for name in names:
            if match(name):
                result.append(name)

    else:
        for name in names:
            if match(os.path.normcase(name)):
                result.append(name)

    return result


def fnmatchcase(name, pat):
    """Test whether FILENAME matches PATTERN, including case.
    
    This is a version of fnmatch() which doesn't case-normalize
    its arguments.
    """
    match = _compile_pattern(pat)
    return match(name) is not None


def translate(pat):
    """Translate a shell PATTERN to a regular expression.
    
    There is no way to quote meta-characters.
    """
    i, n = 0, len(pat)
    res = ""
    while i < n:
        c = pat[i]
        i = i + 1
        if c == "*":
            res = res + ".*"
        elif c == "?":
            res = res + "."
        elif c == "[":
            j = i
            if j < n:
                if pat[j] == "!":
                    j = j + 1
            if j < n:
                if pat[j] == "]":
                    j = j + 1
            while j < n:
                if pat[j] != "]":
                    j = j + 1

            if j >= n:
                res = res + "\\["
            else:
                stuff = pat[i:j].replace("\\", "\\\\")
                i = j + 1
                if stuff[0] == "!":
                    stuff = "^" + stuff[1:]
                else:
                    if stuff[0] == "^":
                        stuff = "\\" + stuff
                res = "%s[%s]" % (res, stuff)
        else:
            res = res + re.escape(c)

    return "(?s:%s)\\Z" % res
